Buggy code:
public class FactoryTest extends VertxTestBase { private static final String FILE_SEP = System . getProperty ( "file.separator" ) ; private List < Server > servers = new ArrayList < > ( ) ; @ Override public void setUp ( ) throws Exception { } @ Override public void tearDown ( ) throws Exception { } @ Test public void testDeploy ( ) throws Exception { } @ Test public void testStartsOK ( ) throws Exception { } @ Test public void testUseMainVerticleFromManifest ( ) throws Exception { } @ Test public void testOtherServiceStartsOK ( ) throws Exception { } @ Test public void testZipExtension ( ) throws Exception { } @ Test public void testClassifier ( ) throws Exception { } @ Test public void testConfiguredResolveFromLocalRepository ( ) throws Exception { } @ Test public void testConfiguredResolveFromRemoteRepository ( ) throws Exception { } @ Test public void testConfiguredResolveFromSecureRemoteRepository ( ) throws Exception { } @ Test public void testConfiguredResolveFromRemoteAuthenticatingRepository ( ) throws Exception { } @ Test public void testConfiguredResolveFromSecureRemoteAuthenticatingRepository ( ) throws Exception { } @ Test public void testConfiguredHttpProxy ( ) throws Exception { } public void testConfiguredHttpsProxy ( ) throws Exception { } @ Test public void testConfiguredAuthenticatingHttpProxy ( ) throws Exception { } @ Test public void testConfiguredHttpProxyFailure ( ) throws Exception { } @ Test public void testLoadSystemDependencyFromVerticleLoaderWhenAbsent ( ) throws Exception { } @ Test public void testLoadSystemDependencyFromParentLoaderWhenPresent ( ) throws Exception { } @ Test public void testLoadDependencyFromVerticleLoaderWhenAbsent ( ) throws Exception { } @ Test public void testLoadDependencyFromVerticleLoaderWhenPresent ( ) throws Exception { } @ Test public void testSysPropsBad ( ) throws Exception { } @ Test public void testUndeploy ( ) throws Exception { } @ Test public void testInvalidServiceIDNoVersion ( ) throws Exception { } @ Test public void testNoServiceName ( ) throws Exception { } @ Test public void testNonExistentModule ( ) throws Exception { vertx . deployVerticle ( "maven:foo:module:1.0::my.serviceA" , ( res ) -> { assertTrue ( res . failed ( ) ) ; assertTrue ( ( ( res . cause ( ) ) instanceof IllegalArgumentException ) ) ; <START_BUG> assertTrue ( res . cause ( ) . getMessage ( ) . startsWith ( "Cannot<seq2seq4repair_space>find<seq2seq4repair_space>module" ) ) ; <END_BUG> testComplete ( ) ; } ) ; await ( ) ; } @ Test public void testMissingTransitiveDependency ( ) throws Exception { } @ Test public void testNonExistentService ( ) throws Exception { } @ Test public void testBadCoords ( ) throws Exception { } @ Test public void testNotDeployable ( ) throws Exception { } private File createMyModuleRepository ( String repoPath ) throws Exception { } private File createMyModuleZipRepository ( String repoPath ) throws Exception { } private File createMyModuleClassifierRepository ( String repoPath ) throws Exception { } private File createMyModuleMainVerticleRepository ( String repoPath ) throws Exception { } private File createMyModuleRepositoryWithSystemDep ( String repoPath ) throws Exception { } private File createMyModuleRepositoryWithDep ( String repoPath ) throws Exception { } private File getWorkDir ( String path ) { } private File getLogFile ( String path ) { } private File createMyModuleRepository ( String repoPath , File artifactFile , File pomFile ) throws Exception { } private void configureRepos ( File localRepo , String remoteRepo ) { } private Server configureTls ( Server server ) throws Exception { } private Server createRemoteServer ( File remoteRepo ) throws Exception { } private void startRemoteServer ( Server server ) throws Exception { } }

Fix:
assertTrue ( res . cause ( ) . getMessage ( ) . startsWith ( "Cannot<seq2seq4repair_space>resolve<seq2seq4repair_space>module" ) ) ;